1,用适当方法解方程(1)2(x-3)2=50(2)(x+2)2-4(x+2)+3=0(3)4x2-4x-...(1)2(x-3)2=50(x-3)2=25x-3=±5x1=8x2=-2(2)(x+2)2-4(x+2)+3=0(x+2-1)(x+2-3)=0(x+1)(x-1)=0x1=-1x2=1(3)4x2-4x-3=0(2x+1)(2x-3)=0x1=-1/2x2=3/2你好!!!1、解:(x-3)2﹙2x+1﹚=0;则有(x-3)2=0;x-3=0;x?=3;2x+1=0;x?=-1/2;2、(x